League of Legends update 25.12 patch notes bring Rammus rework

LoL’s 25.12 patch preview is here, with the big pull being some huge shifts to Rammus aimed at making him a more viable jungler who’s about more than just countering basic attack champions.

After 25.11’s magic item-focused patch, the devs are honing in on champ balance ahead of MSI 2025. There’s a lot more happening this update besides Uzi’s Hall of Legends skin collection.

There are a ton of jungle-focused updates, ones meant to bring characters like Lee Sin and Nidalee back into the meta ahead of MSI. After all, these are some of the most fun and skill expressive jungle champions to watch. It should come as no surprise that Riot wants to put them in a better spot before one of the year’s biggest internationals.

Here are the full notes for League of Legends patch 25.12.

Riot Games

LoL patch 25.12 notes

Champion Changes

Aatrox

Passive: Deathbringer Stance

• Healing increased: 80% of post-mitigation damage >>> 90% of post-mitigation damage

E: Umbral Dash

• Heal ratio increased: 0.9% per 100 bonus HP >>> 1% per 100 bonus HP

Ahri

E: Charm

• Duration decreased: 1.2-2 seconds >>> 1.2-1.8 seconds

R: Spirit Rush

• Cooldown increased: 130-100 >>> 140-100

Aphelios

Base Stats

• Armor growth per level increased: 4.2 >>> 4.4
• Severum heal increased: 2-7.1% >>> 2.5-7.1%

Aurora

Base Stats

• Base magic resist: 30 >>> 32

R: Between Worlds

• AP scaling increased: 60% >>> 70%

Azir

Base Stats

• Movement speed decreased: 335 >>> 330
• Bonus attack speed per level decreased: 6% >>> 5.5%

Bard

Base Stats

• Movement speed increased: 330 >>> 335

Bel’Veth

R: Endless Banquet

• Cast range increased: 275 >>> 450

Garen

E: Judgement

• Base damage per spin reduced: 4-20 >>> 4-16
• AD scaling per tick increased: 36-44% >>> 36-48%

Gwen

Base Stats

• Base health reduced: 620 >>> 600

W: Hallowed Mist

• Cooldown increased: 22-18 >>> 24-18

Jax

Passive: Relentless Assault

• Attack speed increased: 3.5-11% >>> 3.5-13.5%

R: Grandmaster-At-Arms

• On hit base damage increased: 75-185 >>> 80-200

Kalista

Base Stats

• Base health decreased: 580 >>> 560

Q: Pierce

• Cooldown increased: 8 >>> 9

LeBlanc

E: Ethereal Chains

• AP scaling on second hit increased: 80% >>> 85%

R: Mimic

• Cooldown decreased: 50-30 >>> 45-25

Lee Sin

E: Tempest

• Cooldown decreased: 9 seconds >>> 8 seconds
• Slow on second activation adjusted: 20-80% >>> 35-75%

Mordekaiser

Q: Obliterate

• Base damage increased: 80-200 >>> 80-220

Neeko

Q: Blooming Burst

• Initial damage adjusted: 80-260 (+50% AP) >>> 60-260 (+60% AP)

W: Shapeshifter

• Passive on-hit damage decreased: 40-180 >>> 30-170

Nidalee

E: Swipe

• AP scaling increased: 40% >>> 50%

Rammus

Base Stats

• Base AD increased: 55 >>> 65
• Base armor reduced: 40 >>> 35
• Armor growth per level reduced: 5.5 >>> 4.5
• Base attack speed increased: 0.656 >>> 0.7

Passive: Spiked Shell

• No longer grants on-hit magic damage
• Now grants bonus AD equal to 15% bonus resistances

Q: Powerball

• Base damage increased: 80-200 >>> 80-240

W: Defensive Ball Curl

• Rammus’ old passive is now built into this ability
  • Deals 10 (+10% total resistances)
    • This is a buff, damage only scaled with armor before
• Base armor reduced: 40 >>> 27
• Armor scaling reduced: 35-75% >>> 35-65%
• Base magic resist increased: 10 >>> 27
• Magic resist scaling increased: 30-50% >>> 35-65%
• Duration increased: 6 seconds >>> 7 seconds
• Basic attacks no longer extend this ability’s duration

E: Frenzying Taunt

• No longer grants attack speed
• Now deals 80-160 (+70% AP) to monsters upon ability use

R: Soaring Slam

• Base damage increased: 100-250 >>> 100-350
• Shockwaves no longer deal damage
• No longer deals up to 50% bonus damage in th ecenter
• Slow increased: 15-20% >>> 30-60%
• Slow duration now refreshed by shockwaves instead of increased
  • This is a nerf
• Cooldown adjusted: 90 seconds >>> 120-90 seconds

Rumble

Q: Flamespitter

• Max health damage scaling decreased: 6-10% Max HP >>> 6-8% Max HP

E: Electro Harpoon

• Slow decreased: 15% >>> 10%

Samira

Passive: Daredevil Impulse

• Passive movespeed per stack increased: 2-3.5% >>> 2.75-3.5%

Q: Flair

• Base damage increased: 0-20 >>> 5-25

Senna

Passive: Absolution

• Ghost spawn chance on minions you last hit reduced: 14% >>> 10%

Taliyah

Base Stats

• Base magic resist decreased: 30 >>> 28

Q: Threaded Volley

• Empowered Q damage amp decreased: 190% >>> 180%

Twisted Fate

R: Destiny

• Cooldown decreased: 180-120 seconds >>> 160-100 seconds

E: Stacked Deck

• Bonus attack speed increased: 10-50% >>> 15-55%

Varus

Base Stats

• Base armor reduced: 27 >>> 24

Vi

W: Denting Blows

• Base damage reduced: 4-10% max HP >>> 4-8% max HP
• Bonus AD scaling increased: 2.86% max HP per 100 bonus AD >>> 3.5% max HP per 100 bonus AD
• Attack speed buff reduced: 30-60% >>> 30-50%

E: Relentless Force

• Base damage increased: 0-60 >>> 10-90
• AD scaling reduced: 120% >>> 110%

Yasuo

• Buffs coming soon
  • Yasuo was named in Phroxzon’s original preview but not in the full one. We’ll leave him here for now, but there’s a good chance his buffs were pulled from the patch.

Yorick

Passive: Shepherd of Souls

• Ghoul attack speed reduced: 100% of Yorick’s bonus AS >>> 8-80% of Yorick’s bonus AS

Q: Last Rites

• Base damage reduced: 30-130 >>> 30-110

Zeri

R: Lightning Crash

• Base damage upon activation increased: 175-375 >>> 200-400
• Lightning AD scaling increased: 30% >>> 40%

Rune Changes

Grasp of the Undying

• Modifier for ranged champs reduced: 60% >>> 50%
• Range damage reduced: 2.1% max HP >>> 1.75% max HP
• Ranged heal reduced: 0.78% max HP >>> 0.75% max HP
• Ranged bonus HP reduced: 3 >>> 2.5

Systems Changes

Atakhan

• Top lane damage importance increased by 20-25%
  • This is meant to compensate for it being a solo lane and should result in Atakhan spawning up there more often.